// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_MAC_SCOPED_NSAUTORELEASE_POOL_H_
#define BASE_MAC_SCOPED_NSAUTORELEASE_POOL_H_

#include "base/base_export.h"
#include "base/macros.h"

#if defined(__OBJC__)
@class NSAutoreleasePool;
#else // __OBJC__
class NSAutoreleasePool;
#endif // __OBJC__

namespace base {
namespace mac {

    // ScopedNSAutoreleasePool allocates an NSAutoreleasePool when instantiated and
    // sends it a -drain message when destroyed.  This allows an autorelease pool to
    // be maintained in ordinary C++ code without bringing in any direct Objective-C
    // dependency.

    class BASE_EXPORT ScopedNSAutoreleasePool {
    public:
        ScopedNSAutoreleasePool();
        ~ScopedNSAutoreleasePool();

        // Clear out the pool in case its position on the stack causes it to be
        // alive for long periods of time (such as the entire length of the app).
        // Only use then when you're certain the items currently in the pool are
        // no longer needed.
        void Recycle();

    private:
        NSAutoreleasePool* autorelease_pool_;

    private:
        DISALLOW_COPY_AND_ASSIGN(ScopedNSAutoreleasePool);
    };

} // namespace mac
} // namespace base

#endif // BASE_MAC_SCOPED_NSAUTORELEASE_POOL_H_
